Results 91 to 100 of about 28,100 (252)

Enhanced edge extraction using spiral phase plate in optical scanning holography based on gaussian beam apodization [PDF]

open access: yes, 2016
Enhanced edge extraction with high resolution is demonstrated in optical scanning holography (OSH) system by manipulating the radius of the spiral phase plate (SPP) to dampen down the sidelobes of the point spread function ...
Ou, H   +7 more
core   +1 more source

Scene‐Customized Learning for Multi‐Depth 3D Phase‐Only Hologram Generation

open access: yesAdvanced Intelligent Systems, EarlyView.
 Scene‐customized geometric modeling constructs GM‐4K, a controllable 4K RGB‐D dataset for learning‐based multi‐depth hologram generation. By tuning intensity spectra and depth‐region sampling, the dataset reveals how training‐data statistics affect phase‐only hologram encoding and supports a spectral test framework for evaluating model generalization ...
Yanan Zhang   +5 more
wiley   +1 more source

EASY HOLOGRAPHY [PDF]

open access: yesInternational Journal of Modern Physics D, 2013
It is argued that the role of infinite-dimensional asymptotic symmetry groups in gravity theories are essential for a holographic description of gravity and possibly to a resolution of the black hole information paradox. I present a simple toy model in two-dimensional hyperbolic/anti-de Sitter (AdS) space and describe, by very elementary ...
openaire   +2 more sources

Ambident Reactivity in the Phenyl + NO Radical Recombination

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT The recombination reaction of nitric oxide (NO) with radicals via its oxygen atom, rather than the more common nitrogen site, offers an intriguing pathway to the formation of oxynitrenes. The photochemical isomerization of nitroso compounds into their corresponding oxynitrenes may involve such a step.
Virinder Bhagat   +3 more
wiley   +1 more source

Relativistic and non-relativistic holography [PDF]

open access: yes, 2010
Holography is one of the most interesting developments in String theory in the past few years. In this thesis, we discuss various aspects of the correspondence at the phenomenological and conceptual levels.
Nguyen Hoang, Nam, Hoang, Nam Nguyen
core  

Wave-front phase retrieval in transmission electron microscopy via ptychography [PDF]

open access: yes, 2010
There are many different strategies that allow the solving of the well-known phase problem corresponding to the loss of phase information during a physical measurement. In microscopy, and, in particular, in transmission electron microscopy, most of these
Maiden, A.   +9 more
core   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

open access: yesLaser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil   +6 more
wiley   +1 more source

Analysis and interpretation of the Seidel aberration coefficients in digital holography [PDF]

open access: yes, 2011
Peer ...
Watson, John   +5 more
core   +1 more source

Feed particle size evaluation: conventional approach versus digital holography based image analysis

open access: yesItalian Journal of Animal Science, 2010
The aim of this study was to evaluate the application of image analysis approach based on digital holography in defining particle size in comparison with the sieve shaker method (sieving method) as reference method.
Vittorio Dell’Orto   +7 more
doaj   +1 more source

Pancharatnam–Berry Phase Driven by Electrical Restructuring of Liquid Crystal Polarization Grating Period

open access: yesLaser &Photonics Reviews, EarlyView.
Electrically controlled liquid‐crystal twist diffraction element based on the Pancharatnam–Berry phase enables switchable structural periodicity and simultaneous generation of orthogonal circularly polarized coherent waves for multifunctional planar photonic devices.
Elena Melnikova   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy